Upper-pulling apparatus.



J. 2.3001 1 UPPER PULLING APPARATUS.

APPLICATION FILED JULY 7,1910

Lw fiwu Patented Jan. *z, 1918.

l/l/mvasm' ww/vm/a UNTTETT STATES PATENT OEETQE.

JOHN EMERSON SCOTT, OF MARBLEHEAD, MASSACHUSETTS, ASSIGNOR, TO UNITEDSHOE MACHINERY COMPANY, OF PATERSON, NEW JERSEY, A CORPORATION OF NEWJERSEY.

incense.

Specification of Letters Patent.

Patented Jan. 7, 1913.

Application filed July 7, 1910. Serial No. 570,790.

To (ZZZ whom it may concern:

Be it known that LJoHN EMERSON Soorr'r, a citizen of the United States,residing at lllarblehead in the county of Essex and State'ofMassachusetts, have invented certain Improvements in Upper-PullingApparatus, of which the following description, in connection with theaccompanying drawings, is a specification, like reference characters onthe drawings indicating like parts in the several figures.

This invention relates to apparatus for use in the manufacture of bootsand shoes and particularly to upper pulling devices. It is herein shownfor the purpose of exemplification as embodied in a hand pincer ofthetype used by workmen in connection with thelasting and pulling-overoperations.

In stretching an upper and drawing it inwardly over the shoe bottomthere is always liability that the edge of the inner sole or sole willbe lifted by engagement with the stretching upper and be crowded backfrom the edge of the last. In welt and turn shoes the innersole or soleis provided with a beveled or feather edge which as the upper stretchedand drawn inwardly over the last, is particularly apt to be lifted bythe same and to be turned or rolled up away from the last.

The object of this invention is to provide means for holding down theedge or the feather edge, as the case may be, according to the class ofshoes operated upon and to prevent its being caughtby the upper andpulled up or displaced laterally from its proper position. i

A special ditl'iculty which it is an object of this invention toovercome is encountered in the manufacture of turn shoes or shoes whichare assembled and lasted upon their single soles while these parts areinside out and then turned. The feather of the turn sole over which theupper is lasted is the portion of the sole which projects beyond theinseam after the shoe is turned and in the finished shoe. During thelast--- ing operationihis feather necessarily projects more or lessbeyond the edge of the last so that in lasting turn' shoes it isparticularly difiicult to avoid rolling up and crowding back thisfeather. Another special condition prevailing in turn shoe manufactureis that the soles are moist or in temper at the lasting stage in orderthat they may be flexible for the turning operation. This condition addsto the liability of displacing the thin edge of the sole whilestretching the upper.

An important feature of this invention consists in combining with upperpulling pincers means for holding down the feather of the sole orinnersole at and adjacent to the place where the stretching upper isliable to engage the edge of the feather.

It is also a further feature of this invention so to connect the upperpulling means with the described hold-down that the holddown has amovement or receivcsa pressure tending to produce movement downwardly inthe direction reverse to that in which the upper is being pulled; and itis av further feature of this invention that the hold-down is sooperated that it is capable of movement backwardlv or inwardly over thefeather in time relation with any overdrawing movement. which the pincermay have.

The illustrated embodimentof this invention is a hand pincer and thehold-down is carried by the pincer but it is, obvious that the broadinvention herein disclosed is capable of being applied to machinepincers as well as being embodied in various forms of construction.

A novel invention is disclosed in the illustrated arrangements in whichthe hold-. down comprises a member movably connected with the pincer forengaging the shoe at two points, one point being upon the feather andthe other remote from the edge of the sole and the connection permittingtransmission downwardly upon the sole of the pressure exerted by thepincers upon the upper. It is a characteristic of this construct-ionthat the hold-down has a sliding contact with or abutment against afixed projection from the pincer which may be the tack drivingprojection usually found upon hand pincers.

gresses so as to allow the pivoted fulcrum or downholdmember to bearupon the sole, backward movement of the downhold being prevented in thisform, by a separate stationary abutment which may be embraced by themovable. hammer in its normal or operative position.

Still another feature of the invention is the provision of means wherebythe downward pressure upon the two legs of the downhold member is atfirst nearly evenly divided and as the stretching of the upperprogresses the bressure' is transferred from the inner leg, resting onthe sole, to the' outer leg, resting on the feather. By this means thedownward pressure on the feather is increased with the upward pull onthe upper.

Figure 1 1s a side view of one form of drawn inward ready for theoperation of securing the upper by tacking. Fig. 4 represents a modifiedform of the device in- ,vol'ving the principles exemplified in the firstform; Fig. 5 shows the modified form of the device in operation.

The device shown in Fig. 1 of the drawings embodies the usual type oflasting pincers having curved jaws 2, 4, the lever handles 3, 5, and adownwardly projecting member 6 which serves, in the ordinary use of handpincers, alternately as aw fulcrum about which the pincers are operatedas a lever by depressing the handles 3, 5 when the upper is gripped andas a hammer head for driving a tack after the upper has been stretchedand drawn inward over the last. The present invention is herein shown asembodied in an attachment for this common aw of the pincers and thelower ends of the said member to the crescent-shaped downholdmeinber at14. The rear face 16 of the member 8 bears against the face 18 of therigid abutment 6 which serves to guide and direct relative movement ofthe pincers and the sole rest. A spring 20 is provided which bearsagainst the cross bar of the H-shaped member and is seated in a recessin the lower face of the jaw 2, which spring acts to hold the member 8normally in the position shown in Fig. 1 with the point or cusp 22 ofthe crescent-shaped member 8 in depressed position and againsttheabutment 18 the upper and against the edge or feather.

edge of the-sole, so that upon farther downward movement of the pincerhandles a positive pressure is exerted upon the feather-edge of the solein' direct proportion to the upward pull upon the upper. In this mannerthe elevation of the edge or feather by the movement of the upperthereover is positively prevented. From an in spection of Fig. 3 whichshows the parts of the device in their extreme stretching posi-- tion(in full lines), it will be seen that as the parts advance from theposition shown in Fig. 2 to that of Fig. 3 the H-shaped link member andthe forward part of the crescent-shaped down-hold 8, which bears thecusp or leg 24, form a toggle joint with the pressure on the cusp 22tending to straighten the toggle. In the initial position (Fig.2) thedownward pressure on the divided fulcrum is substantially evenly dividedbetween'the legs or cusps 22 and 24 but as the stretching advances thepressure is transferred more and more to the leg or cusp 24 and hencethe hold-down effect on the feather increasesias the tension on theupper increases. When the upper has been sufliciently stretched bybringing the parts to the position of Fig.3 the deviceis drawn inwardlyto bring the upper over the sole to the position shown in dotted linesin Fig. 3, the feather engaging point or leg of the sole rest member 8being of course drawn inward at the same time. The operatornow holds theupper against the edge of the. sole with the thumb of his left hand andwith the thumb and forefinger of his right. hand, which still holds thepincer handles, inserts a tack through the upper into the sole in theproper :place to secure the upper in its stretched and overdrawnposition. blow from the hammer head 6 of the incers.

In Figs. 4 and 5 is represented a orm of the device in which the cusp 22of the crescent-shaped sole-edge downhold does not ex- He then driventhe tack with a tend normally below the face of the ham- .mer member, asthis provision is found desirable in practice. In this form of device.the curved member 8 and the H-shaped member 10 are substantiallyidentical with those of the form already described. In

place of the hammer head shown in Fig. 1, however, there is provided arigid abut- I ment 6 against which the convex side of the curved memberbears and is thereby restrained in its movement longitudinally of thedevice, the'function of this abutment, as far as its relation to thecurved member is concerned, being identical with that of the hammer headof the form shown in Fig. 1. For driving the tack there is provided ahammer memben 7 pivoted at 26 just back of the base of the rigidabutment 6. During the pulling-over operation this hammer head'7 must beswung out of the way so that the legs or cusps 22 and 24 may act asfulcrums for the pincers. This is accomplished by connecting the head 7by, the links 28 to the end of the member 8 near the cusp 22. The links28 are arranged one on each side, and are pivoted at one end by the pin32 to the member 8 and at the other end by the pin 34 to the hammermember 7. liy

this connection it will be apparent from Fi 4 and 5 that as the point 22ot' the curved member 8 is brought to bear upon the sole of the shoe andis thereby elevated during the stretching of the upper the head 7 willbe swung backwardly, as shown in Fig. 5, entirely out of the way of theoperation of the curved member 8. hen the pulling-over operation hasbeen completed and the pincers are released the parts are brought backto their original position, as shownin Fig. 4, by means of a spring 30wound about the pivot 26 and one end thereof attached to the head 7 insome suitable manner, as by threading it through the pivot pin 34 ot thelink 29, and the other end. to the jaw oi. the bincers, as by threadingitthrough the pivot pin A similar spring is arranged in the same way onthe opposite side of the tool.

The operation of this form of the device,

being substantially the same as that of the form first described, willnow be readily understood Without further details.

It will be of course understood that the member referred to as thecurved or crescent-shaped member 8 is so named n'icrely for the purposeof identification in the drawing and that this member may be variouslyshaped and be connected to the pinccrs in various ways withoutdestroying its function as a sole edge down-hold and as a tulcrmn forthe hand levers 3 and 5.

The provision inhand lasters pincers of means for positively holdingdown the feather-edge of a sole during the stretching operation on theupper is believed to be entirely novel and I do not wish, therefore, tobe limited to the specific means herein disclosed for accomplishing thatobject, but

Having explained the purpose and function of my improved device andhaving shownmechanical embodiments thereof "1. A hand lasting pincer,comprising in combination, crossed levers having the longer arms thereofformed as handles and the shorter arms thereof formed as 00- operatingjaws, sole edge engaging means operatively associated with the lower jawof the pincer and between which and said jaw there is relative movementto enable it to engage and to hold down the sole edge during the upperstretching operation.

2. A hand lasting pincer, comprising in combination, crossed levershaving co6perating handles on their longer arms and cooperating jaws ontheir shorter arms, and means acting with continuous pressure 011 thesame portion of the feather edge of the innersole to hold down the sameduring the upper stretching operation effected by the pincer.

3. A hand lasting pincer, comprising in combination, crossed levershaving the longer arms thereof formed as handles and the shorter armsthereof formed as oooperating jaws and a member directly associated withthe inner one of the upper pulling jaws and relatively to which the jawsmove in pulling the upper in a direction to cause it to press down thefeather of the sole with increasing force as the upper is pulled.

1-. hand lasting pincer combimilion crossed levers havingthe longer armsthereof formed as handles and the shorter a rms thereof formed ascooperating jaws, means for holding down the sole edg and means wherebythe pressure applied thereto increases faster than the pull on the upperis increased.

5. A hand lasting pincer comprising in combination crossed levers havingthe longer arm thcrcol' formed as handles and the shorter arms thcreot'formed as cooperating jaws, means for positively holding down the soleedge during the stretching of the upper, and means whereby the downwitrdpressure on the edge is 'aried at a rate ditlercnt from that at whichthe upward tension on the upper is varied.

(3. A hand lasting pincer comprising in combination crossed levershaving the longer arms thereof formed as handles and the shorter armsthereof formed as cotiperating jaws t'or straining the upper overthelast, a down-hold for the feather edge of the sole. and means whereby,as the upper yields to the strain, the pressure applied to the downholdapproaches in degree the pull on the.

upper.

71,11 a bination, crossed levers having cooperating comprising inlasting pincers comprising, in com-H handles on their longer arms andcooperating jaws on theirshorter arms, a fulcrum member having a soleedge engaging portion arranged in close proximity to the rear face ofthe lower jaw to engage and hold down the edge of the shoe sole and .aseparate bearing portion to engage the sole remote from its edge and apivotal or fulcral connection between said member and said jaws.

'8. A hand pincer having upper seizing and pulling jaws, an abutmentacting as a fulcrum for the pincer, a hammer projection on the lowerside of the pincer which is movable during the use of the pincer to aposition away from the abutment to permit close approach of the pincerto the work, and means for automatically returning said projection intooperative position toward said abutment.

9. In hand lasting pincers, means whereby the upper may be stretchedover the last and i sole of a Goodyear welt or turn shoe, means actingon the depressed marginal edge of the sole and operatively connectedwith the stretching means to receive downward pressure during thestretching operation to force the sole edge downupon the last bottom.

10. In a device of the class described, pincers providedwith curved jawsand a rigid abutment, means pivoted to the lower jaw and operativelyengaging said rigid abutment and adapted to bear upon the feather edgeof a sole and upon a portion of the sole farther from the edge while thepincers engage the upper, whereby pressure is applied to thefeather-edge as the upper is pulled over by the pincers.

11. In a device of the class described, pincers provided with curvedjawsand a rigid abutment located on one jaw inside the curve thereof, acrescent-shaped member, links,

pivoted to said member and said jaw whereby the crescent shaped memberissupported with one cusp adjacent the jaws and the other cusp adjacentthe abutment, and means 'for normally holding the latter cusp defulcrummemberand said hammer memberswhereby the latter is swung out ofoperative position as one end of the'fulcrum member is elevated, andmeans for. returning the hammer member to operative position whenpressure on the fulcrum member is released;

14. The combination with lasting pincers, of a fulcrum member, a pivotedhammer member and means whereby the hammer member is swung out ofoperative position as the upper is pulled, and means for returning thehammer member to operative position when pressure on the fulcrum memberis released.

15. The combination with lasting pincers, of fulcrum means engagingthe-sole at the edge and elsewhere, and means whereby, as the upper ispulled, fulcral pressure is transferred from one fulcrum engagingv pointto another.

16. In an apparatus of the class described,

jaws to grasp and pull an upper, lovers to which thejaws are connectedfor hand op-' the innersole of a welt or the sole of a turn shoe duringthe upper stretching-operation. -17. In an apparatus of theclassdescribed, jaws to seize and pull-an upper, a sole edge downhold, alink conecting the downhold to one of the jaws and forming with thedownhold a toggle, and means cooperating with said parts to efiectrelative movement in the direction to strengthen the said toggle duringthe upper pulling operation.

18. In an apparatus of the class described,

jaws to seize and pull an upper, a sole edge downhold, a link connectingthe downhold to one of the jaws and forming with the downhold a toggle,and means cooperating with the downhold and the jaws to guide and directrelative movement in the direction to straighten said toggle as theupper pulling operation proceeds.

19. In an apparatus of the class described, the jaws 2 and 4: pivotallyconnected for relative upper seizing movement and having thelevers 3 and5 for effecting upper pulling movement, the hold-down 8, having the legs22, 24, the link 10 connecting the hold-down to the jaw 2, and theabutment 6 secured to the jaw 2 and engaging the hold-down during theupper stretching operation to-guide and direct relative movement of thejaws and the hold-down in the direction to move the link and the leg 24of the hold-down toward alinement.

20. In an apparatus of the class described, the jaws 2 and 4 pivotallyconnected for relative upper seizing movement and having the levers 3and 5 for effecting upper pulling movement, the hold-down 8, having thelegs 22,24, the link 10 connecting the hold-down to the jaw 2, theabutment 6 secured to the "jaw 2 and engaging the hold-down during theupper stretching operation to guide. and direct relative movement of thejaws and the rciatee hold-down in the direction to move the link and theleg at of the hold-down toward alinement, the hammer member pivotallyconnected to one of the jawsfand the link 28 connecting the hold-downwith the hammer member to swing the latter backwardly during the upperpulling movement.

21. in an apparatus of the class described, jaws to seize and pull anupper, a lever to actuate the jaws and toggle members one of which isconnected with the jaws and the other of which is adapted to rest on thesole and which are arranged to be moved by the operation of said leverin the direction to straighten them for the pulling operation.

22. In an apparatus of the class described, jaws to seize and pull anupper, a lever to actuate the jaws, a sole rest having a portionarranged to engage the sole remote from its edge and a portion which isarranged to engage the sole adjacent to its edge and to term a togglemember, alink pivotally connected to said member and to the upperpulling means and forming a second toggle member, and an abutment on theupper pulling means which has sliding engagement, with the rear portionof the sole rest to control movement in a path to straighten the to glemembers.

23. 11 an upper pulling apparatus, a pincer comprising cooperating jawsand operating hand levers, a sole rest formed to engage the feather of asole and to overlie the shoulder and engage the sole back of the featherand upon which the pincers are fulcrumed, and means for maintainingnormal pivotal relation of the .sole rest and the pincers.

cer comprising aws and an operating lever, a sole rest formed to engagethe feather of. a sole and to overliethe shoulder and engage the soleback of the leather and a link forming a movable fulcrum for the pincerand connecting the pincer to the sole rest.

, 25. In an upper pulling apparatus, a pincer, a hold-down tormed andarranged to the hold-down, as and 24. In an upper pulling apparatus apin-,

engage the featherof a sole, and a connec tion between the pincer andthe hold-down to cause the pincer to be moved backwardly from the edgeof the sole during overdrawing movement of the pincer.

26. In an upper pulling apparatus a pincer, a'holddown.formed andarranged to engage the feather of a sole, said parts being connected toallow the pincer to have a combined upper stretching and initialoverdrawing movement while the hold-down prevents displacement of thesole edge andthen to permit the hold-down to be'moved inwardly from theedge of the sole with the pincer when thelatter is manipulated to laythe upper down upon the sole.

27. A hand pincer having upper seizing and pulling jaws, a sole'rest anda hammer projection which is automatically moved from operative positionduring the upper t wt pulling operation and returned after operation.

28. A hand pincer having upper seizing and pulling jaws, an abutment anda hammer projection on the lower side of the pincer which are movablerelatively during use of the pincer toward and from ositions to permitclose approach of the pincer to the shoe bottom.

29. An apparatus of the class having in combination, upper pulling jawsanda hold-down which rests on the feather of the sole during the upperstretching operation and drags inwardly over the feather in advance ofthe upper during the overdrawing operation, and means by which thepincers may be operated independently of scribed.

In testimony-whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

JOHN EMERSON SCOTT.

Witnesses FREDERICK L. EnMANns, ELIZABETH C. Coors.

for the purpose dedescribed,

